EP0070497B1 - Nichttoxische Stabilisatormischung für halogenhaltige Polymere - Google Patents

Nichttoxische Stabilisatormischung für halogenhaltige Polymere Download PDF

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Publication number
EP0070497B1
EP0070497B1 EP82106237A EP82106237A EP0070497B1 EP 0070497 B1 EP0070497 B1 EP 0070497B1 EP 82106237 A EP82106237 A EP 82106237A EP 82106237 A EP82106237 A EP 82106237A EP 0070497 B1 EP0070497 B1 EP 0070497B1
Authority
EP
European Patent Office
Prior art keywords
stabilizer
toxic
halogen
containing polymers
pvc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82106237A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0070497A1 (de
Inventor
Max Dr. Dipl.-Chem. Buschhoff
Karl Heinz Dr. Dipl.-Chem. Müller
Hans Dr. Dipl.-Chem. Plum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crompton ck Witco GmbH GmbH
Original Assignee
Schering AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Schering AG filed Critical Schering AG
Publication of EP0070497A1 publication Critical patent/EP0070497A1/de
Application granted granted Critical
Publication of EP0070497B1 publication Critical patent/EP0070497B1/de
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
    • C08K5/57—Organo-tin compounds
    • C08K5/58—Organo-tin compounds containing sulfur

Definitions

  • organotin stabilizers for the light and heat stabilization of halogen-containing polymers, in particular polyvinyl chloride and PVC copolymers, has long been known.
  • FR-A No. 2109945 proposes mixtures of dialkyl and monoalkyltin stabilizers with alkyl radicals having 1 to 18 carbon atoms for PVC stabilization, the monoorganotin compound being said to make up the lower proportion in the mixture.
  • the optimum effect is determined between 20 and 50%.
  • PVC resins are stabilized with a mixture of mono- and di-n-octyltin thioglycolates, at least 70% of the monocomponent should be present, with advantageous properties in certain cases.
  • EP-A No. 32106 also describes a stabilizer mixture of mono- and dioctyltin thioglycolates with 50 to 75% mono fraction, C 10 to C 16 alkyl thioglycolates being provided as thioglycolate residues.
  • Conventional stabilizers such as dibutyl or octyltin thioglycolates, in particular in a mixture with the corresponding mono compounds, have a particularly favorable synergistic effect with a mono content of about 25 to 30% by weight with regard to the stabilizer effect.
  • the excellent heat-stabilizing effect of the stabilizer mixtures according to the invention is all the more astonishing since the tin content, for example of the stabilizer mixture with the isooctylthioglycolate residue with 13.4% tin content, is considerably below that of the comparative stabilizer which contains 17.5% tin.
  • the stabilizing effect of the inventive Dodecylzinn stabilizer mixtures increases in spite of even lower tin content (11.5% and 9% when dodecyl or Tetradecylthioglykola t) from only insignificantly. So far, it has been the case for all known organotin stabilizers that the stabilizing effect essentially depends on the tin content of the product, ie the effect decreases significantly as the tin content decreases.
  • the stabilizer mixture according to the invention has the further advantage that it has even lower toxicity values than the conventional organotin stabilizers and can therefore be classified as non-toxic.
  • the migration of the stabilizer from the PVC is important; understandably, it should be as low as possible.
  • the migration of the stabilizer mixture according to the invention is very much lower than with other organotin stabilizers. It is below 0.2 ⁇ g tin / dm 2 test foil (compared to 5 ⁇ g tin / dm 2 for dioctyltin thioglycolates). In both cases the amount of stabilizer in PVC was 1.5% by weight.
  • the stabilizer mixture according to the invention is therefore particularly suitable in several respects for packaging materials based on PVC or copolymers, which are used for the packaging of foods and pharmaceuticals or in the medical field, for example for blood preserves, plastic tubes for infusions, where particularly low toxicity values are required.
  • the stabilizer mixture according to the invention is non-toxic and, owing to the extremely low migration compared to other organo, can Tin stabilizers get into the packaged goods in considerably smaller quantities.
  • the amount of stabilizer used can be kept low from the outset due to the good stabilizing effect.
  • the stabilizer mixture according to the invention is also low in odor and has a low volatility. In the thermal processing of many z. Organotin stabilizers currently in use can cause considerable annoyance to personnel due to the released stabilizer. The stabilizer mixture according to the invention does not have these disadvantages due to its high boiling points and low vapor pressure.
  • the dodecyltin stabilizer components can be prepared by known processes from the corresponding dodecyltin chlorides or oxides and thioglycolic acid esters.
  • the stabilizer mixture according to the invention is optionally used together with other known stabilizers, stabilizing auxiliaries, antioxidants, UV stabilizers, lubricants, plasticizers, etc. They are used in amounts of 0.1 to 3, in particular 1 to 2,% by weight, based on polymers. Stabilizer effect
  • test temperature was 185 ° C. 2% Naftolube "Fol was added as a lubricant.
  • a previously customary stabilizer was used as the comparative stabilizer, namely di-n-butyltin bisthioglycolic acid isooctyl ester with 25% content of mono-n-butyltin tristhioglycolic acid isooctyl ester.
  • the tin content of this stabilizer is 17.5%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP82106237A 1981-07-17 1982-07-13 Nichttoxische Stabilisatormischung für halogenhaltige Polymere Expired EP0070497B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28419681A 1981-07-17 1981-07-17
US284196 1981-07-17

Publications (2)

Publication Number Publication Date
EP0070497A1 EP0070497A1 (de) 1983-01-26
EP0070497B1 true EP0070497B1 (de) 1984-10-03

Family

ID=23089251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106237A Expired EP0070497B1 (de) 1981-07-17 1982-07-13 Nichttoxische Stabilisatormischung für halogenhaltige Polymere

Country Status (8)

Country Link
EP (1) EP0070497B1 (nl)
JP (1) JPS5859248A (nl)
BE (1) BE893860A (nl)
DE (2) DE3223733A1 (nl)
FR (1) FR2509741A1 (nl)
GB (1) GB2102433B (nl)
IT (1) IT1156101B (nl)
NL (1) NL8202252A (nl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599373B1 (fr) * 1986-05-30 1989-06-16 Ciba Geigy Ag Compositions a base de poly-(chlorure de vinyle) stabilisees par des composes laurylstanniques, application de ces compositions et procede pour stabiliser des matieres a mouler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346999A (en) * 1970-10-02 1974-02-13 Interstab Ltd Stabilisers for vinyl chloride resins
GB1510974A (en) * 1975-05-19 1978-05-17 M & T Chemicals Inc Stabilized vinyl chloride resins
EP0032106B1 (de) * 1979-12-07 1983-06-01 Ciba-Geigy Ag Gemische von n-Octylzinn-Verbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung als Stabilisatoren für halogenhaltige Thermoplaste

Also Published As

Publication number Publication date
EP0070497A1 (de) 1983-01-26
GB2102433A (en) 1983-02-02
BE893860A (fr) 1983-01-17
NL8202252A (nl) 1983-02-16
DE3260900D1 (en) 1984-11-08
JPH0160178B2 (nl) 1989-12-21
DE3223733A1 (de) 1983-05-26
GB2102433B (en) 1985-01-30
FR2509741B1 (nl) 1985-01-18
JPS5859248A (ja) 1983-04-08
IT1156101B (it) 1987-01-28
FR2509741A1 (fr) 1983-01-21
IT8222080A0 (it) 1982-06-28

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